Abstract: A tandem pulley includes a support bracket having the shape of an inverted U. The support bracket defines a through hole. A pair of sheaves is arranged in line inside the support bracket. Each sheave is mounted rotating freely around a spindle fixed to the support bracket. A carabiner is fitted in the through hole. A connector is configured to connect the support bracket with the carabiner. The connector is configured in such a way as to allow rotation of the carabiner around an axis parallel to the spindles of the pair of sheaves. A spring is connected to the support bracket, the spring being arranged to exert a force on the carabiner biasing the latter to a rest position by rotation of the carabiner.

Abstract: A connection device comprises a connector forming a ring with an open position and a closed position. A handle is fixed to the connector and has two extensions receiving a user's hands. The handle defines a tube extending in a first direction and a through hole arranged to pass through the tube perpendicularly to the first direction. A first end of a wire member forms a loop fixed to the connector in the tube. The second end of the wire member is fixed to the user. The connector passes through the through hole and the loop to fix the handle and the wire member to the connector.

Abstract: A belay device comprises a casing with an opening for a rope loop. A roller is inserted movable in the casing and mounted idle. The roller is mounted movable between first, second and third roller positions. A rotation clamp either allows free rotation of the roller or disables one rotation direction of the roller depending on the position of the roller in the casing. The rotation clamp allows free rotation when the roller is in the first roller position and disables one rotation direction of the roller when the roller is in the second and third roller position. A spring biases the roller to the first roller position and transforms a force on the roller into a position of the roller in the casing.

Abstract: The tandem pulley comprises a pair of sheaves mounted in line between first and second flanges. A gate is fitted rotating with respect to the first flange between closed and open positions. The gate comes into contact with the second flange in the closed position to close a housing. The clamp is movable in rotation on the gate between a locking position locking the gate in the closed position and an unlocking position. The clamp has a prong pressing on the first flange and the gate in the locking position. The clamp has an actuating area separated from the first flange by the gate. Rotation of the actuating area from the locking position to the unlocking position corresponds to a movement of the actuating area away from the second flange. Rotation of the actuating area results in pivoting of the prong.

Abstract: A connection device comprises a connector forming a ring with an open position and a closed position. A handle is fixed to the connector and has two extensions receiving a user's hands. The handle defines a tube extending in a first direction and a through hole arranged to pass through the tube perpendicularly to the first direction. A first end of a wire member forms a loop fixed to the connector in the tube. The second end of the wire member is fixed to the user. The connector passes through the through hole and the loop to fix the handle and the wire member to the connector.

Abstract: The descender comprises a handle and a cam that are movable between a securing position and a sliding position of the rope. The cam defines a first stop and a second pin. The handle has a first pin coming into contact with the first stop to form a first mechanical link and a second stop coming into contact with the second pin. Movement of the handle results in movement of the cam between the securing and sliding positions. In a threshold position of the handle, the first mechanical link is interrupted and the cam returns to the securing position. The second stop is movable with respect to the handle by means of a spring. When movement of the handle takes place, the second pin comes into contact with the second stop before the handle stresses a spring and reaches the threshold position.

Abstract: The tandem pulley comprises a pair of sheaves mounted in line between first and second flanges. A gate is fitted rotating with respect to the first flange between closed and open positions. The gate comes into contact with the second flange in the closed position to close a housing. The clamp is movable in rotation on the gate between a locking position locking the gate in the closed position and an unlocking position. The clamp has a prong pressing on the first flange and the gate in the locking position. The clamp has an actuating area separated from the first flange by the gate. Rotation of the actuating area from the locking position to the unlocking position corresponds to a movement of the actuating area away from the second flange. Rotation of the actuating area results in pivoting of the prong.

Abstract: A tandem pulley includes a support bracket having the shape of an inverted U. The support bracket defines a through hole. A pair of sheaves is arranged in line inside the support bracket. Each sheave is mounted rotating freely around a spindle fixed to the support bracket. A carabiner is fitted in the through hole. A connector is configured to connect the support bracket with the carabiner. The connector is configured in such a way as to allow rotation of the carabiner around an axis parallel to the spindles of the pair of sheaves. A spring is connected to the support bracket, the spring being arranged to exert a force on the carabiner biasing the latter to a rest position by rotation of the carabiner.

Abstract: A belay descender device for a rope comprising a cam mounted rotating on a fixed flange to perform locking of the rope when said rope is under tension, and a lever articulated on the cam to perform progressive unlocking of the rope with a geared-down effect at the beginning of unlocking travel of the lever. The operating lever comprises transmission means collaborating with a guide ramp of the flange to interrupt the mechanical link with the cam after an intermediate position of the lever has been passed resulting in freeing from said ramp outside the gearing-down area. The end of the guide ramp of the flange corresponds to the anti-panic position of the transmission means, enabling automatic locking of the cam as soon as the gearing-down area has been passed.

Abstract: A rope self-locking descender has a first flange, a cam movable with respect to the first flange successively between a first position, a clamping position of the rope and a running position of the rope in the first flange, a handle movable with respect to the first flange successively between a stowing position, a first position of use clamping the rope and a running position of the rope. A first spring is connected to the first flange and to the handle to return the handle to the stowing position. The cam is mechanically connected to the handle in intermittent manner so that movement of the cam from the first position to its clamping position of the rope results in movement of the handle from its stowing position to the first position of use. The handle is not mechanically connected to the cam between the first position and a running position.

Abstract: The belay device comprises: a body with an inlet for insertion of a strand of rope forming a loop, a shaft and clamping part mounted on the body, the shaft extending in a longitudinal direction, an attachment opening collaborating with a carabiner connecting the belay device with a harness, a cam with a first end mounted in rotation on the shaft along a path so as to move towards or away from the clamping part and to define a first clamping position of the rope and another position. The cam, body and clamping part define a running path of the rope. The rope strand passes between the cam and the clamping part. The first end defines a through opening formed by the attachment opening. The connecting part is fitted movable in rotation with respect to the body along the path.

Abstract: The descender comprises a handle and a cam that are movable between a securing position and a sliding position of the rope. The cam defines a first stop and a second pin. The handle has a first pin coming into contact with the first stop to form a first mechanical link and a second stop coming into contact with the second pin. Movement of the handle results in movement of the cam between the securing and sliding positions. In a threshold position of the handle, the first mechanical link is interrupted and the cam returns to the securing position. The second stop is movable with respect to the handle by means of a spring. When movement of the handle takes place, the second pin comes into contact with the second stop before the handle stresses a spring and reaches the threshold position.

Abstract: A rope self-locking descender has a first flange, a cam movable with respect to the first flange successively between a first position, a clamping position of the rope and a running position of the rope in the first flange, a handle movable with respect to the first flange successively between a stowing position, a first position of use clamping the rope and a running position of the rope. A first spring is connected to the first flange and to the handle to return the handle to the stowing position. The cam is mechanically connected to the handle in intermittent manner so that movement of the cam from the first position to its clamping position of the rope results in movement of the handle from its stowing position to the first position of use. The handle is not mechanically connected to the cam between the first position and a running position.

Abstract: A swivel attachment device comprising a pair of rings able to rotate freely with respect to one another around an axis of rotation defined by a central pivot-pin. At least one of the rings is in the form of a hook delineating a lateral access space. A removable closing part, composed of a spacer through which a fixing screw passes, is able to close said space performing partial take-up of the tensile forces.

Abstract: A belay descender device for a rope comprising a earn mounted rotating on a fixed flange to perform locking of the rope when said rope is under tension, and a lever articulated on the cam to perform progressive unlocking of the rope with a geared-down effect at the beginning of unlocking travel of the lever. The operating lever comprises transmission means collaborating with a guide ramp of the flange to interrupt the mechanical link with the cam after an intermediate position of the lever has been passed resulting in freeing from said ramp outside the gearing-down area. The end of the guide ramp of the flange corresponds to the anti-panic position of the transmission means, enabling automatic locking of the canvas soon as the gearing-down area has been passed.

Abstract: A safety apparatus on a rope, including a first flange-plate, an operable second flange-plate, and a mechanical indicator collaborating when the swiveling movement takes place with both the first pivot-pin and a latch to indicate that the second flange-plate is in the closed and latched position, or in an unlatched ready-to-open state.

Abstract: A safety device on a rope, comprising a first flange-plate and a movable second flange-plate, a roller mounted on a first spindle integral to the first flange-plate, which presents clearance in the heightwise direction. The movable second flange-plate is equipped: with a securing notch operating in conjunction with the first spindle to block the device in the closed position when the roller is under load, and with a latch actuated by control means to perform unlatching of the latter enabling opening of the second flange-plate when the device is no longer under load.

Abstract: A swivel attachment device comprising a pair of rings able to rotate freely with respect to one another around an axis of rotation defined by a central pivot-pin. At least one of the rings is in the form of a hook delineating a lateral access space. A removable closing part, composed of a spacer through which a fixing screw passes, is able to close said space performing partial take-up of the tensile forces.

Abstract: A safety apparatus on a rope, including a first flange-plate, an operable second flange-plate, and a mechanical indicator collaborating when the swivelling movement takes place with both the first pivot-pin and a latch to indicate that the second flange-plate is in the closed and latched position, or in an unlatched ready-to-open state.

Abstract: A safety device on a rope, comprising a first flange-plate and a movable second flange-plate, a roller mounted on a first spindle integral to the first flange-plate, which presents clearance in the heightwise direction. The movable second flange-plate is equipped: with a securing notch operating in conjunction with the first spindle to block the device in the closed position when the roller is under load, and with a latch actuated by control means to perform unlatching of the latter enabling opening of the second flange-plate when the device is no longer under load.